20025620546 has 4 divisors (see below), whose sum is σ = 30038430822. Its totient is φ = 10012810272.

The previous prime is 20025620533. The next prime is 20025620561. The reversal of 20025620546 is 64502652002.

20025620546 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19845765625 + 179854921 = 140875^2 + 13411^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006405135 + ... + 5006405138.

Almost surely, 2^20025620546 is an apocalyptic number.

20025620546 is a deficient number, since it is larger than the sum of its proper divisors (10012810276).

20025620546 is a wasteful number, since it uses less digits than its factorization.

20025620546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012810275.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 20025620546 in words is "twenty billion, twenty-five million, six hundred twenty thousand, five hundred forty-six".